| Meaning |
{
"name": "Rosin",
"chemical_name": "Colophony",
"synonyms": ["Pine resin", "Rosin acid"],
"CAS_number": "8050-09-1",
"source": "Obtained by heating and distilling crude resin from pine trees (genus Pinus)",
"description": "Rosin is a solid form of resin obtained from pines and some other conifers. It is composed mainly of various resin acids such as abietic acid. It is brittle, yellow to brown, and has a distinctive pine-like odor.",
"physical_properties": {
"appearance": "Yellow to brown solid, brittle",
"melting_point_C": "100–200",
"solubility": {
"water": "Practically insoluble",
"organic_solvents": [
"Ethanol (partial)",
"Acetone (partial)",
"Toluene (soluble)",
"Xylene (soluble)"
]
}
},
"common_uses": [
"Adhesives and varnishes",
"Printing inks",
"Rubber cement",
"Musical instrument bows (violin, cello)",
"Solder fluxes",
"Pharmaceutical tablets (as a glaze)",
"Airplane and automotive lacquers"
],
"health_and_safety": {
"hazards": [
"May cause skin irritation on prolonged contact",
"Dust can be a respiratory irritant",
"Potential allergen for some individuals"
],
"first_aid_measures": {
"skin_contact": "Wash with soap and water",
"inhalation": "Move to fresh air; seek medical attention if symptoms persist",
"ingestion": "Do not induce vomiting; seek medical advice"
}
},
"regulatory_information": {
"EU_classification": "Not classified as hazardous under REACH",
"US_regulation": "Generally recognized as safe (GRAS) for certain food applications"
}
} |
